Definitionen
1.AdjectiveOf, related to, or based on documents.
2.AdjectiveWhich serves to document (record or illustrate) a subject.
3.AdjectivePresented objectively without the insertion of fictional matter."a documentary film"
4.NounA film, TV program, publication etc. which presents a social, political, scientific or historical subject in a factual or informative manner.
5.NounSuch works collectively, as a genre.